8

Make the Electrical Connection

1. Disconnect power.
2. Determine the location where the wiring conduit will be
routed through the ceiling or wall between the makeup air
switch duct and the motorized damper.
3. Drill a hole at this location.
4. Locate the electrical terminal boxes in the makeup air switch
duct and the motorized damper.
Remove the terminal box covers and set the covers and
screws aside.
5. Determine the knockouts in terminal boxes for motorized
damper, makeup air switch duct and house junction box that
will be used.
Remove knockouts and install a ½" (12.7 mm) UL listed or
CSA approved strain relief at each location.
6. Run separate wiring between the house junction box and the
terminal boxes for the motorized damper and the makeup air
switch duct.
7. Connect green (yellow/green) wires from makeup air switch
duct and motorized damper to house ground using UL listed
wire connectors.
8. Connect brown wire from makeup air switch duct to the black
wire(s) from the motorized damper using UL listed wire
connectors.
9. Connect black wire from makeup air switch duct to the house
line black wire using a UL listed wire connector.
10. Connect the white wire(s) from the motorized damper to the
house neutral white wire(s) using UL listed wire connectors.
NOTE: The 10" (25.4 cm) Makeup Air Kit must be installed
with 2 motorized dampers. The lightest figure shown is the
connection for the second motorized damper.

Check Operation

Once the make up air switch duct and the motorized damper(s)
are installed, the installer should confirm that the motorized
damper opens and closes in conjunction with signals from the
hood.
■The motorized damper should close or be closed when
the range hood speed switch is Off or On at low speed.
■The motorized damper should open when the range hood
speed switch is set at medium speed or higher.
A qualified HVAC contractor should also ensure the proper
operation and venting of all combustion equipment in the home.

Makeup Air Kit Maintenance

Regular maintenance is necessary to ensure the proper operation
of the makeup air system. Failure to conduct routine maintenance
can reduce the ability of the damper to introduce fresh air into the
home. Regular maintenance should include the following
activities:
■Maintain a clear opening at the outdoor end cap, keeping
snow, leaves or vegetation from building up at the end
cap.
■Clean or replace the interior filter(s) that serve to filter
fresh air before it enters the home.
■During regular HVAC maintenance, have the mechanical
contractor inspect the damper system for proper
operation.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Connect ground wire to green ground wire in terminal
box.
Replace all parts and panels before operating.
Failure to do so can result in death, fire, or
electrical shock.
House
ground
House
neutral
House
neutral
House
line
House
ground
120VAC
white
brown
black
green
wall
yellow/
green
green
black
white
House
ground
black
10" (25.4 cm) Makeup air installation
black